umts call flow scenarios overview
DESCRIPTION
Umts Call Flow Scenarios overviewTRANSCRIPT
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Contents
Introduction Basic stuff..
Call Flow Scenarios Node-B initialization and System Information Broadcast
RRC Connection Establishment and Release
Location/Routing Area Update
Circuit Switch Call Setup and Release
Packet Switch Call Setup and Release
Handovers
Backup Misc..
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Introduction
UE Connection States
RNC Cell and UE Contexts
End to End Protocol Stacks (CS and PSDomain)
Handover Scenarios
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UE Connection States
GSMConnected
Mode
UTRAN RRC Connected
GPRSPacket
Transfer
Mode
IDLE
Mode
CELL DCH
CELL PCH URA PCH
CELL FACH
Camping on GSM/GPRS Cell
Camping on UTRAN Cell
GPRS Packet
Idle Mode
UMTS to GSM
Inter-System Handover
GSM to UMTS
Inter-System Handover
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UE #M
UE #2
UE #1
DTCHs
CELL #N
CELL #2
CELL #1
RLC-TM
RLC-TM
RNCCell and UE Contexts
PHY-Upper
MACd
RLC-UM RLC-AM RLC-AM RLC-AM RLC-AM
RLC-TM
DCH FP DCH FP DCH FP
DCCH DCCH DCCH DCCH DTCH
DCH DCH
RRC
PDCP
GTP IuUP
PS RAB CS RAB
MACc
RRC
SRB
RLC-TM RLC-UMRLC-TM
SRB #0SRB #0
CCCH CCCHPCCH
PCH FP FACH FPRACH FP
FACHPCHRACH
SRB #1 SRB #2 SRB #3 SRB #4
DCHs
MAC-d
MAC-c/sh
Flows
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CS DomainEnd to End Protocols
PHY
PHY [E1/T1/STM]
ATM
AAL2
FP
AAL5
SSCOP
SSCF-UNI
STC.2 NBAP
ALCAP
PHY
PHY-upper
MAC
RLC
RRCCodec
MM
CC
PHY [E1/T1/STM]
ATM
AAL2
FP
AAL5
SSCOP
SSCF-UNI
STC.2NBAP
ALCAP PHY-upper
MAC
RLC
RRC
IuUP
AAL5
SSCOP
SSCF-NNI
STC.1
ALCAP
MTP3-b
SCCP
RANAP
PHY [E1/T1/STM]
ATM
AAL2
IuUP
AAL5
SSCOP
SSCF-NNI
STC.1
ALCAP
MTP3-b
SCCP
RANAP
Codec
MM
CC
UE Node-B RNC 3G-MSCUu IuB Iu-CS
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PS DomainEnd to End Protocols
PHY
PHY [E1/T1]
ATM
AAL2
FP
AAL5
SSCOP
SSCF-UNI
STC.2 NBAP
ALCAP
PHY
PHY-upper
MAC
RLC
RRCPDCP
GMM
SM
PHY [E1/T1/STM-1]
ATM
AAL2
FP
AAL5
SSCOP
SSCF-UNI
STC.2NBAP
ALCAP PHY-upper
MAC
RLC
RRC
IP
AAL5
SSCOP
SSCF-NNI
MTP3-b
SCCP
RANAP
PHY [STM-1]
ATM
SSCF-NNI
AAL5
SSCOP
MTP3-b
SCCP
RANAP
GMM
SM
UE Node-B RNC 3G-SGSNUu IuB Iu-PS
IP
PDCP GTP-U
UDP
IP
GTP-U
UDP
GTP-C
L2
L1
IP
GTP-C
UDP
GTP-C
L2
L1
IP
3G-GGSNGn
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Handover Scenarios
UTRAN
RNS
Node-BNode-B
RNC
RNS
Node-BNode-B
RNC
Core Network (CN)
UE
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Call Flow Scenarios
Node-B initialization
RRC Connection Establishment and Release
Location/Routing Area Update
Circuit Switch Call Setup and Release
Packet Switch Call Setup and Release
Handovers
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Node-B Initialization
RNC MSCNode-BUE
Audit Procedure
Cell Setup Procedure
System Information Update
Common TrCH(PRACH, AICH, RACH) Setup
Common TrCH(SCCPCH, PCH/PICH, FACHs) Setup
SIB5 System Information Update
Un-block and Un-barred Cell
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationAudit Procedure:Audit Required Indication MessageDescription: Request the CRNC to perform an audit of the logical resources at the Node B. Node-B initiates this
procedure after the SSCOP layer is established via the exchange of BGN/BGAK PDUs.
Main IEsTransaction ID
Channels
SSCF / SSCOP / AAL5
NBAPNBAPAudit Required Indication
[ Transaction ID ]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationAudit Procedure:Audit Request MessageDescription: RNC initiates an audit of the Node-B configuration and status of logical resources, using Audit
Request message. A complete audit of a Node B is performed by one or more Audit procedures.
Main IEsTransaction ID
Start of audit sequence ind
Channels
SSCF / SSCOP / AAL5
NBAPNBAPAudit Required Indication
[ Transaction ID ]
NBAPNBAPAudit Request
[ Transaction ID, Start of Audit Seq Ind ]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationAudit Procedure:Audit Response MessageDescription: Node-B sends Audit response to RNC, with its current configuration and status of logical resources,
using Audit Response message.
Main IEsTransaction ID
End of audit sequence ind
Cell Info (Configured)
Local Cell Information
Communication Control
Port information
Channels
SSCF / SSCOP / AAL5
NBAPNBAPAudit Required Indication
[ Transaction ID ]
NBAPNBAPAudit Request
[ Transaction ID, Start of Audit Seq Ind ]
NBAPNBAPAudit Response
[ End of Audit Seq Ind, Local Resource Info ]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCell Setup Procedure:Resource Status Indication MessageDescription: Node-B sends resource indication message to indicate availability or un-availability of local resource
(e.g. Local Cell, etc), or change in capability, operational state, etc of resource.
Main IEsTransaction ID
No Failure Indication
Local Cell ID
Add/Delete Indicator
Channels
SSCF / SSCOP / AAL5
NBAPNBAPResource Status Indication
[ Local Cell ID, Add/Delete Indicator ]
Audit Procedure
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCell Setup Procedure:Cell Setup Request MessageDescription: RNC initiates Cell Configuration/Setup, which will use resources in Node-B identified by Local Cell
ID, received in Resource Status Indication message.
Main IEsTransaction ID,
Global (C-ID) Cell ID,
Local (Node-B) Cell ID,
DL/UL Frequency,
Maximum Tx Power,
Primary Scrambling Code
P-SCH, S-SCH info,
PCPICH, SCPICH info,
PCCPCH, BCH, etc info..
Channels
SSCF / SSCOP / AAL5
NBAPNBAPResource Status Indication
[ Local Cell ID, Add/Delete Indicator ]
Audit Procedure
NBAPNBAP Cell Setup Request[ Global/Local Cell ID, Physical Config. ]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCell Setup Procedure:Cell Setup Response MessageDescription: Node B reserves necessary resources and configure the new cell according to received parameters,
and on success sends Cell Setup Responseto RNC. (On failure, Cell Setup Failureresponse will be sent!!)
Main IEsTransaction ID
Channels
SSCF / SSCOP / AAL5
NBAPNBAPResource Status Indication
[ Local Cell ID, Add/Delete Indicator ]
Audit Procedure
NBAPNBAP Cell Setup Request[ Global/Local Cell ID, Physical Config. ]
NBAPNBAPCell Setup Response
[ Transaction ID ]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCell Setup Procedure:Block Resource Request MessageDescription: Node-B request RNC to block (prohibit use of!!) new configured cell until system information (MIB,
SIBs, etc) are updated and broadcast on BCH (i.e. PCCPCH).
Main IEsTransaction ID
Global (C-ID) Cell ID
Blocking Priority (High!!)
Channels
SSCF / SSCOP / AAL5
NBAPNBAPResource Status Indication
[ Local Cell ID, Add/Delete Indicator ]
Audit Procedure
NBAPNBAP Cell Setup Request[ Global/Local Cell ID, Physical Config. ]
NBAPNBAPCell Setup Response
[ Transaction ID ]
NBAPNBAPBlock Resource Request
[ Transaction ID, Blocking Priority ]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCell Setup Procedure:Block Resource Response MessageDescription: RNC Blocks respective resource (cell!!), and send successful response to the Node-B.
Main IEsTransaction ID
Channels
SSCF / SSCOP / AAL5
NBAPNBAPResource Status Indication
[ Local Cell ID, Add/Delete Indicator ]
Audit Procedure
NBAPNBAP Cell Setup Request[ Global/Local Cell ID, Physical Config. ]
NBAPNBAPCell Setup Response
[ Transaction ID ]
NBAPNBAPBlock Resource Request
[ Transaction ID, Blocking Priority ]
NBAPNBAPBlock Resource Response
[ Transaction ID ]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationSystem Info Update Procedure:System Info Update Request MessageDescription: RNC sends System Information, Scheduling Information, System Information Update time, etc of
respective configured cell to Node-B using series of System Information Update Requestmessage.
Main IEsTransaction ID
Global (C-ID) Cell ID
BCCH Modification Time
MIB, SB, SIB info
Segment Info
Channels
SSCF / SSCOP / AAL5
Audit Procedure
NBAPNBAPSystem Information Update Request
[ SIB segment info. ]
Cell Setup Procedure
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationSystem Info Update Procedure:System Info Update Response MessageDescription: Node-B process received System Information, Scheduling Information, System Information Update
time, etc and send successful response using System Information Update Responsemessage.
Main IEsTransaction ID
Global (C-ID) Cell ID
Channels
SSCF / SSCOP / AAL5
Audit Procedure
NBAPNBAPSystem Information Update Request
[ SIB segment info. ]
Cell Setup Procedure
NBAPNBAPSystem Information Update Response
NBAPNBAPSystem Information Update Request
[ SIB segment info. ]
NBAPNBAPSystem Information Update Response
Segment 1
Segment 2
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationSystem Info Update Procedure:RRC System Information MessageDescription: Node-B store and process received system information; and schedules transmission of each
segment according to scheduling information, on BCCH: BCH: PCCPCH, in Cell.
Main IEsMaster Information Block,
Scheduling Block,
System Information Block
Channels
BCCH / BCH / PCCPCH
Audit Procedure
NBAPNBAPSystem Information Update Request
[ SIB segment info. ]
Cell Setup Procedure
NBAPNBAPSystem Information Update Response
NBAPNBAPSystem Information Update Request
[ SIB segment info. ]
NBAPNBAPSystem Information Update Response
Segment 1
Segment 2
RRCRRC
BCCH: System Information
RRCRRCBCCH: System Information
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:Common TrCH Setup Request MessageDescription: RNC use this procedure to setup Common transport channel(s), along with associated physical
channels, on which they are mapped, in Node-B. (e.g. One PRACH, AICH, RACH in single message!!.)
Main IEsTransaction ID, Cell ID,
PRACH parameters [ e.g.
TFCS, SF, Signatures, etc..]
AICH parameters [ e.g.
Channel Codes, Power, etc..]
RACH parameters [ e.g.
TrCH ID, TFS, etc..]
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
NBAPNBAP Common TrCH Setup Request[PRACH, AICH, RACH]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:Common TrCH Setup Response MessageDescription: Node B configure and activate indicated PRACH, AICH and associated RACH transport channel, and
sends successful response to RNC (with TLA and Binding ID for RACH IuB AAL2 Bearer!!).
Main IEsTransaction ID, RACH parameters [ e.g.
TrCH ID, Transport Layer
Address and Binding ID ]
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
NBAPNBAP Common TrCH Setup Request[PRACH, AICH, RACH]
NBAPNBAPCommon TrCH Setup Response
[TLA, Binding ID]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:ALCAP Establish Request MessageDescription: RNC initiates establishment of AAL2 bearer for RACH, using received Transport Layer Address and
Binding ID information, in response from Node-B.
Main IEsOSAID / DSAID (Originating
/ Destination signalling
association ID)
CEID (Path ID + CID) SUGR (Binding ID!!)
AAL2 Destination Address
of Node-B
Channels
STP.2 / SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
NBAPNBAP Common TrCH Setup Request[PRACH, AICH, RACH]
NBAPNBAPCommon TrCH Setup Response
[TLA, Binding ID]
ALCAPALCAPALCAP Establish Request (ERQ)
[OSAID,DSAID,SUGR,AAL2 Address]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:ALCAP Establish Confirm MessageDescription: Node-B ALCAP verifies received Binding ID; and respond successful establishment of AAL2 bearer
using ALCAP confirm message.
Main IEsOSAID
DSAID
Channels
STP.2 / SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
NBAPNBAP Common TrCH Setup Request[PRACH, AICH, RACH]
NBAPNBAPCommon TrCH Setup Response
[TLA, Binding ID]
ALCAPALCAPALCAP Establish Confirm (ECF)
[OSAID,DSAID]
ALCAPALCAPALCAP Establish Request (ERQ)
[OSAID,DSAID,SUGR,AAL2 Address]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:Common TrCH Setup Request MessageDescription: RNC use this procedure to setup Common transport channel(s), along with associated physical
channels, on which they are mapped, in Node-B. (e.g. One SCCPCH, PICH, PCH, FACH(s) in single message!!.)
Main IEsTransaction ID, Cell ID,
SCCPCH parameters [e.g. ID,
TFCS, SF, Codes, etc..]
PCH parameters [ e.g. ID,
TFS,Window(ToAWS, ToAWE),
PICH Code, Max Power, .. ]
FACH(s) parameters [ e.g.
ID, TFS, Window(ToAWS,
ToAWE), Max Power, .. ]
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
Common TrCH(PRACH, AICH, RACH) Setup
NBAPNBAPCommon TrCH Setup Request
[ SCCPCH, PCH+PICH, FACH(s) ]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:Common TrCH Setup Response MessageDescription: Node B configure and activate indicated SCCPCH, PICH, associated PCH and FACH(s) transport
channel, and sends successful response to RNC (with TLA and Binding ID for PCH, FACH IuB AAL2 Bearer!!).
Main IEsTransaction ID, PCH parameters [ e.g. TrCH
ID, Transport Layer Address
and Binding ID ]
FACH(s) parameters [ e.g.
TrCH ID, Transport Layer
Address and Binding ID ]
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
NBAPNBAPCommon TrCH Setup Request
[ SCCPCH, PCH+PICH, FACH(s) ]
NBAPNBAPCommon TrCH Setup Response
[TLA(s), Binding ID(s)]
Common TrCH(PRACH, AICH, RACH) Setup
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:ALCAP Establish Request MessageDescription: RNC initiates establishment of AAL2 bearer for PCH and FACH(s), using received respective
Transport Layer Address and Binding ID information, in response from Node-B.
Main IEsOSAID
DSAID + CEID
SUGR (Binding ID!!)
AAL2 Destination Address
of Node-B
Channels
STP.2 / SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
NBAPNBAPCommon TrCH Setup Request
[ SCCPCH, PCH+PICH, FACH(s) ]
NBAPNBAPCommon TrCH Setup Response
[TLA(s), Binding ID(s)]
ALCAPALCAPALCAP ERQ
[OSAID,DSAID,SUGR,AAL2 Address]
Common TrCH(PRACH, AICH, RACH) Setup
For PCH & FACH(s) bearers
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:ALCAP Establish Confirm MessageDescription: Node-B ALCAP verifies received Binding ID; and respond successful establishment of AAL2 bearer
using ALCAP confirm message.
Main IEsOSAID
DSAID
Channels
STP.2 / SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
NBAPNBAPCommon TrCH Setup Request
[ SCCPCH, PCH+PICH, FACH(s) ]
NBAPNBAPCommon TrCH Setup Response
[TLA(s), Binding ID(s)]
ALCAPALCAPALCAP Establish Request (ERQ)
[OSAID,DSAID,SUGR,AAL2 Address]
ALCAPALCAPALCAP Establish Confirm (ECF)
[OSAID,DSAID]
Common TrCH(PRACH, AICH, RACH) Setup
For PCH & FACH(s) bearers
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:FP DL Synchronization FrameDescription: After successful establishment of AAL2 bearer, at RNC, PCH and FACH(s) FPs initiates L2
synchronization by sending DL synchronizationcontrol frame with current CFN.
Main IEsCFN (Connection Frame
Number)
Channels
FP / AAL2
Audit Procedure
Cell Setup Procedure
System Information Update
NBAPNBAPCommon TrCH Setup Request
[ SCCPCH, PCH+PICH, FACH(s) ]
NBAPNBAPCommon TrCH Setup Response
[TLA(s), Binding ID(s)]
ALCAPALCAPALCAP Establish Request (ERQ)
[OSAID,DSAID,SUGR,AAL2 Address]
ALCAPALCAPALCAP Establish Confirm (ECF)
[OSAID,DSAID]
FPFP DL Synchronization[ CFN ]
Common TrCH(PRACH, AICH, RACH) Setup
For PCH & FACH(s) bearers
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationCommon TrCH Setup Procedure:FP UL Synchronization FrameDescription: Node-B RACH FP verifies relationship of SFN with received CFN, and respond back with UL
synchronization control frame, containing Time of Arrival [ToA - required timing adjustment!!] information.
Main IEsCFN (Connection Frame
Number),
ToA [Time of Arrival]
Channels
FP / AAL2
Audit Procedure
Cell Setup Procedure
System Information Update
NBAPNBAPCommon TrCH Setup Request
[ SCCPCH, PCH+PICH, FACH(s) ]
NBAPNBAPCommon TrCH Setup Response
[TLA(s), Binding ID(s)]
ALCAPALCAPALCAP Establish Request (ERQ)
[OSAID,DSAID,SUGR,AAL2 Address]
ALCAPALCAPALCAP Establish Confirm (ECF)
[OSAID,DSAID]
FPFP DL Synchronization[ CFN ]
FPFPUL Synchronization
[ CFN, ToA ]
Common TrCH(PRACH, AICH, RACH) Setup
For PCH & FACH(s) bearers
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationSystem Info Update Procedure:System Info Update Request MessageDescription: After successful setup of all common physical and transport channels for a Cell, RNC sends System
Information, Scheduling Information, etc (i.e. SIB5 [& SIB6!!] of respective configured cell) to Node-B.
Main IEsTransaction ID
Global (C-ID) Cell ID
BCCH Modification Time
Reference to other SIBs
Segment Info [SIB5 with
PRACH info, SCCPCH info,
AICH info, PICH info, etc ..]
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
Common TrCH(PRACH, AICH, RACH) Setup
Common TrCH(SCCPCH, PCH/PICH, FACHs) Setup
NBAPNBAPSystem Information Update Request
[ SIB5 segment info. ]
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationSystem Info Update Procedure:System Info Update Request MessageDescription: Node-B process received SIB5 (and SIB6!!) System Information, Scheduling Information, System
Information Update time, etc and send successful response to RNC.
Main IEsTransaction ID
Global (C-ID) Cell ID
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
Common TrCH(PRACH, AICH, RACH) Setup
Common TrCH(SCCPCH, PCH/PICH, FACHs) Setup
NBAPNBAPSystem Information Update Request
[ SIB5 segment info. ]
NBAPNBAPSystem Information Update Response
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationSystem Info Update Procedure:System Info Update Request MessageDescription: Node-B sends resource indication message to indicate that it has successfully change cell capacity
and communication control port operational state (and ready to unblock cell!!)
Main IEsTransaction ID
Communication Control
Port ID
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
Common TrCH(PRACH, AICH, RACH) Setup
Common TrCH(SCCPCH, PCH/PICH, FACHs) Setup
NBAPNBAPResource Status Indication[ Communication Control port ID ]
SIB5 System Information Update
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationSystem Info Update Procedure:System Info Update Request MessageDescription: Node-B sends resource unblock indication message to RNC, to indicate that respective Cell is
operational and can be unblocked.
Main IEsTransaction ID
Global (C-ID) Cell ID
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
Common TrCH(PRACH, AICH, RACH) Setup
Common TrCH(SCCPCH, PCH/PICH, FACHs) Setup
NBAPNBAPResource Status Indication[ Communication Control port ID ]
NBAPNBAPUnblock Resource Indication
[ C-ID ]
SIB5 System Information Update
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationSystem Info Update Procedure:System Info Update Request MessageDescription: After successful unblocking cell resource, RNC sends updated SIB3 System Information (with cell
status as unbarred!!) to Node-B.
Main IEsTransaction ID
Global (C-ID) Cell ID
BCCH Modification Time
Reference to other SIBs
Segment info [ SIB3 with
Cell status unbarred!! ]
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
Common TrCH(PRACH, AICH, RACH) Setup
Common TrCH(SCCPCH, PCH/PICH, FACHs) Setup
NBAPNBAPResource Status Indication[ Communication Control port ID ]
NBAPNBAPUnblock Resource Indication
[ C-ID ]
NBAPNBAPSystem Information Update Request
[ SIB3 segment info. ]
SIB5 System Information Update
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationSystem Info Update Procedure:System Info Update Request MessageDescription: Node-B process received SIB3 System Information, Scheduling Information, System Information
Update time, etc and send successful response to RNC.
Main IEsTransaction ID
Global (C-ID) Cell ID
Channels
SSCF / SSCOP / AAL5
Audit Procedure
Cell Setup Procedure
System Information Update
Common TrCH(PRACH, AICH, RACH) Setup
Common TrCH(SCCPCH, PCH/PICH, FACHs) Setup
NBAPNBAPResource Status Indication[ Communication Control port ID ]
NBAPNBAPUnblock Resource Indication
[ C-ID ]
NBAPNBAPSystem Information Update Request
[ SIB3 segment info. ]
NBAPNBAPSystem Information Update Response
SIB5 System Information Update
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Channels Main IEs
RNC MSCNode-BUE
Node-B InitializationNode-B initialization with operational Cell Context!!..
Main IEsChannels
Audit Procedure
Cell Setup Procedure
System Information Update
Common TrCH(PRACH, AICH, RACH) Setup
Common TrCH(SCCPCH, PCH/PICH, FACHs) Setup
SIB5 System Information Update
Un-block and Un-barred Cell
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RRC Connection Management
RNC MSCNode-BUE
Random Access Procedure
RRC Connection Request
UE Context Setup
RRC Connection Setup
RRC Connection Release
UE Context Cleanup
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementRandom Access Procedure:System Information BroadcastDescription: Node-B transmits system information blocks according to scheduling information, on BCCH: BCH:
PCCPCH, in Cell. UE acquires system information blocks required for initial access in idle mode.
Main IEsMaster Information Block,
Scheduling Block,
System Information Block
[SIB 1, SIB 2, SIB 3, etc..]
Channels
BCCH / BCH / PCCPCH
RRCRRCBCCH: System Information
RRCRRCBCCH: System Information
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementRandom Access Procedure:Physical Layer Access attemptsDescription: UE use cell system information to determine common physical channel configuration, initial power,
etc.. It use received PCPICH power, calculates initial uplink power (open loop!!) and initiate access to network.
Main IEsSignature Sequence
Channels
PRACH
RRCRRCBCCH: System Information
RRCRRCBCCH: System Information
PHYPHYPreamble
PHYPreamble
PHYPreamble
Wait for AICH response,
No response, Step-up power!!
Retransmit Preamble
Wait for AICH response,
No response, Step-up power!!
Retransmit Preamble
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementRandom Access Procedure:Physical Layer Access detectionDescription: UE use cell system information to determine common physical channel configuration, initial power,
etc.. It use received PCPICH power, calculates initial uplink power (open loop!!) and initiate access to network.
Main IEsAICH Response Sequence
Channels
AICH
RRCRRCBCCH: System Information
RRCRRCBCCH: System Information
PHYPHYPreamble
PHYPreamble
PHYPreamble
Wait for AICH response,
No response, Step-up power!!
Retransmit Preamble
Wait for AICH response,
No response, Step-up power!!
Retransmit Preamble
PHYPHYAccess Indication
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementInitial Access Request:RRC Connection Request MessageDescription: On successful physical layer access detection, UE transmits RRC Connection Request message to
network on RACH : PRACH.
Main IEsInitial UE identity [ e.g.
IMSI, TMSI, P-TMSI, IMEI, etc.
]
Establishment Cause [ e.g.
Originating or Terminating
voice,data..;Emergency, etc]
Measurement Information
Channels
CCCH : RACH : PRACH
Random Access Procedure
RRCRRCCCCH: RRC Connection Request
PHYPHY
RACH Message[ Data, Control (TFCI) ]
FPFPRACH Data Frame
[ CFN, TFI, TB(s), CRCI indicator ]
RLC
MAC RLC
MACProcess received PRACH data;Decode it using control info(TFCI);
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementUE Context Setup Procedure:Radio Link Setup Request MessageDescription: On reception of RRC Connection Request message, RNC selects L1, L2 parameters according to UE
RRC state and allocate resources. If selected RRC state Cell DCH, initiates RL setup towards Node-B.
Main IEsCell ID, Comm Ctxt ID,
UL/DL DPCH info [ e.g.
Codes, TFCS, etc ]
DCH info [ e.g. TrCH ID,
UL/DL TFS, Window(ToAWS,
ToAWE), Priority, etc..]
Power Information [ e.g.
Initial power, SIR target,
Max/Min DL power, etc ]
Channels
SSCF / SSCOP / AAL5
Random Access Procedure
RRC Connection Setup Request
NBAPNBAPRadio Link Setup Request[ UL/DL DPCH info, RL info, DCH ]
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementUE Context Setup Procedure:Radio Link Setup Response MessageDescription: On reception Radio Link Setup Requestmessage, Node-B reserves necessary resources and
configure new radio link(s) according to received parameters, and respond success to RNC.
Main IEsTransaction ID,
Node-B Communication
Context ID
DCH parameters [ e.g. TrCH
ID, Transport Layer Address
and Binding ID ]
Channels
SSCF / SSCOP / AAL5
Random Access Procedure
RRC Connection Setup Request
NBAPNBAPRadio Link Setup Request
NBAPNBAP Radio Link Setup Response[ Comm Ctxt info, TLA, Binding ID ]
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementUE Context Setup Procedure:ALCAP Establish Request/Confirm MessageDescription: RNC initiates AAL2 bearer establishment for DCH, using received AAL2 TLA and Binding ID. Node-B
ALCAP verifies received Binding ID; and respond successful establishment with ALCAP Confirm msg.
Main IEsOSAID, DSAID + CEID,
SUGR (Binding ID!!),
AAL2 destination Address
OSAID,
DSAID
Channels
SSCF / SSCOP / AAL5
Random Access Procedure
RRC Connection Setup Request
NBAPNBAPRadio Link Setup Request
NBAPNBAP Radio Link Setup Response
ALCAPALCAPALCAP Establish Request (ERQ)
[OSAID,DSAID,SUGR,AAL2 Address]
ALCAPALCAPALCAP Establish Confirm (ECF)
[OSAID,DSAID]
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementUE Context Setup Procedure:FP DL/UL Synchronization FrameDescription: At RNC, DCH FP initiates L2 synchronization using DL synchronizationControl Frame with CFN.
Node-B DCH FP verifies CFN to SFN relationship; & respond back with ToA(required timing adjustment) Info.
Main IEsCFN (Connection Frame
Number)
CFN (Connection Frame
Number),
ToA (Time of Arrival)
Channels
FP / AAL2
Random Access Procedure
RRC Connection Setup Request
NBAPNBAPRadio Link Setup Request
NBAPNBAP Radio Link Setup Response
ALCAPALCAPALCAP Establish Request (ERQ)
ALCAPALCAPALCAP Establish Confirm (ECF)
FPFPDL Synchronization
[ CFN ]
FPFP UL Synchronization[ CFN, ToA ]
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementInitial Access Response:RRC Connection Setup MessageDescription: On successful setup of UE context, RNC sends RRC Connection Setupmessage to UE over CCCH :
FACH : SCCPCH, with information about allocated resources/configuration.
Main IEsReceived Initial UE ID,
RRC State [DCH, FACH]
RNTIs [U-RNTI, C-RNTI]
SRB info [RLC, mapping],
UL/DL DCH info [e.g. ID, TFS,
TFCS, etc..]
RL info [e.g. Frequency,
Codes, etc]
Power Info, etc..
Channels
CCCH : FACH : SCCPCH
Random Access Procedure
RRC Connection Setup Request
UE Context Setup
RRCRRC CCCH: RRC Connection Setup
PHYPHYSCCPCH Message[ Data, Control (TFCI) ]
FPFPFACH Data Frame(s)
[ CFN, TFI, TB(s) ]
RLC
MACRLC
MAC RRC Connection Setup message
would be split into several TB(s),
hence this sequence will repeat!!
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementInitial Access Response:RRC Connection Setup Complete MessageDescription: On reception of RRC Connection Setupmessage, UE configures its L1, L2 according RRC state and
respective received parameters, and responds to RNC using RRC Connection Setup Completemessage.
Main IEsRRC transaction ID,
START List [CS, PS]
Radio Access Capabilities
[e.g. Basic, extended, inter-
system, etc]
Channels
DCCH : DCH : DPDCH
Random Access Procedure
RRC Connection Setup Request
UE Context Setup
RRCRRC CCCH: RRC Connection Setup
PHYPHYSCCPCH Message[ Data, Control (TFCI) ]
FPFPFACH Data Frame(s)
[ CFN, TFI, TB(s) ]
RLC
MACRLC
MAC RRC Connection Setup message
would be split into several TB(s),
hence this sequence will repeat!!
RRCRRCDCCH: RRC Connection Setup Complete
RLC
MACPHYPHY DPCH [DPDCH + DPCCH]
[ Data, Control (TFCI,TFC,Pilot) ]
FPFPDCH Data Frame
[ CFN, TFI, TB(s), CRCI indicator ]
RLCMAC
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementRRC Connection Release: RRC Connection Release MessageDescription: RNC anytime can release RRC Connection in Cell FACH or Cell DCH state, by sending RRC Connection
Releasemessage on DCCH. [exceptionally on CCCH, when UE in Cell FACH state!!]
Main IEsRRC transaction ID, Release Cause[e.g. normal,
inactivity, directed re-
establishment, congestion, ..]
Rplmn information
Channels
DCCH : DCH : DPDCH
Random Access Procedure
RRC Connection Setup Request
UE Context Setup
RRC Connection Setup
RRCRRCDCCH: RRC Connection Release
PHYPHYDPCH [DPDCH + DPCCH][ Data, Control (TFCI,TPC,Pilot) ]
FPFPDCH Data Frame(s)
[ CFN, TFI, TB(s) ]
RLC
MACRLC
MAC
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementRRC Connection Release:RRC Connection Release Complete MessageDescription: On reception of RRC Connection Releasemessage, responds to RNC with RRC Connection Release
Completemessage on DCCH, terminates RRC Connection and move to idle state.
Main IEsRRC transaction ID
Channels
DCCH : DCH : DPDCH
Random Access Procedure
RRC Connection Setup Request
UE Context Setup
RRC Connection Setup
RRCRRCDCCH: RRC Connection Release
PHYPHYDPCH [DPDCH + DPCCH][ Data, Control (TFCI,TPC,Pilot) ]
FPFPDCH Data Frame(s)
[ CFN, TFI, TB(s) ]
RLC
MACRLC
MAC
RRCRRCDCCH: RRC Connection Release Complete
RLC
MAC
PHYPHYDPCH [DPDCH + DPCCH][ Data, Control (TFCI,TFC,Pilot) ]
FPFPDCH Data Frame
[ CFN, TFI, TB(s), CRCI indicator ]
RLC
MAC
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementUE Context Cleanup:NBAP Radio Link Deletion Request MessageDescription: On reception of RRC Connection Release Completemessage, RNC initiates cleanup of UE context. If
RRC Connection in Cell DCH state, initiate Radio Link Deletion Requesttowards Node-B.
Main IEsTransaction ID,
CRNC Comm Ctxt ID,
Node-B Comm Ctxt ID,
RL ID(s)
Channels
SSCF : SSCOP : AAL5
Random Access Procedure
RRC Connection Setup Request
UE Context Setup
RRC Connection SetupRRC Connection Release
NBAPNBAPRadio Link Deletion Request
[ RL ID(s) ]
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementUE Context Cleanup:NBAP Radio Link Deletion Response MessageDescription: On reception Radio Link Deletion Request, Node-B release all resources associated with respective
RL Ids. On success, respond with Radio Link Deletion Responsemessage to RNC.
Main IEsTransaction ID,
CRNC Communication
Context ID
Channels
SSCF : SSCOP : AAL5
Random Access Procedure
RRC Connection Setup Request
UE Context Setup
RRC Connection SetupRRC Connection Release
NBAPNBAPRadio Link Deletion Request
NBAPNBAPRadio Link Deletion Response
[ CRNC Comm Ctxt ID ]
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementUE Context Cleanup:ALCAP Release Request/Confirm MessageDescription: After RL deletion, RNC initiate AAL2 bearer release allocated for DCH data stream. RNC ALCAP
request release with Release Requestmessage, Node-B ALCAP confirms it with Release Confirmmessage.
Main IEsDSAID
Cause
DSAID
Channels
STC.2 / SSCF / SSCOP / AAL5
Random Access Procedure
RRC Connection Setup Request
UE Context Setup
RRC Connection SetupRRC Connection Release
NBAPNBAPRadio Link Deletion Request
NBAPNBAPRadio Link Deletion Response
ALCAPALCAPALCAP Release Request
[ DSAID, Cause ]
ALCAPALCAPALCAP Release Confirm
[ DSAID ]
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Channels Main IEs
RNC MSCNode-BUE
RRC Connection ManagementRRC Connection Established and Released!!..
Main IEsChannels
Random Access Procedure
RRC Connection Setup Request
UE Context Setup
RRC Connection SetupRRC Connection Release
UE Context Cleanup
Mobility Management Location
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Mobility ManagementLocation
UpdateRNC MSC/VLRNode-BUE
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
Identification /Authentication / Security Procedure (Optional!!)
Location Update Accept (Optional TMSI Reallocation!!) Procedure
RRC Connection Release
UE Context Cleanup
Iu Connection Release
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateSignalling Connection Establishment:RRC Initial Direct Transfer Message
Description: On successful establishment of RRC Connection, UE sends first NAS message, enclosed in RRC
Initial Direct Transfermessage on DCCH.
Main IEsRRC transaction ID,
CN Domain Identity [e.g. CS,
PS],
NAS Message [ Encoded
Update Type, Cipher Key Seq
No, LAI, Classmark, .. ]
Measurement Results
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
RRCRRCDCCH: Initial Direct Transfer
[ CN Domain ID, NAS Message ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateSignalling Connection Establishment:RANAP Initial UE Message
Description: RNC uses received CN domain identity in Initial Direct TransferMessage, and initiate Iu (Iu-CS)
connection setup, and transfer of received Initial UE NAS message using RANAP to core network (MSC/VLR).
Main IEsCN Domain ID [CS or PS]
Location Info [ e.g. LAI, RAC,
SAI, etc..]
NASPDU [ Encoded
Update Type, Cipher Key Seq
No, LAI, Classmark, .. ]
Global RNC ID
Iu Signalling Connection
Identifier
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
RRCRRCDCCH: Initial Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAPInitial UE Message
[ CN Domain ID, LAI, NAS-PDU ]
SCCPSCCPConnection Confirm (CC)
[ SRC/DST References ]
SCCPSCCPConnection Request (CR)
[ Reference, SRC/DST Add, User Data ]
Iu (Iu-CS!!) Connection Setup;
SCCP carry RANAP Initial UE Message
piggybacked in SCCP CR PDU!!
All subsequent RANAP messages will be
sent over this established SCCP Connection!!
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateIdentification Procedure:RANAP Direct Transfer Message
Description: MM (optionally!!) initiates Identification Procedure, with Identity Request message. MSC forwards
Identity Request message, encoded NAS PDU, using RANAP Direct TransferMessage to RNC.
Main IEsNASPDU [ Encoded
Identity Request, Identity
Type (e.g. IMSI, TMSI, etc)]
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RANAPRANAPDirect Transfer
[ NAS PDU (Identity Request!!) ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateIdentification Procedure:RRC Downlink Direct Transfer Message
Description: RNC RRC encodes received NAS PDU, in RANAP Direct Transfermessage, into RRC Downlink Direct
Transfermessage and send it to UE on DCCH (SRB-3).
Main IEsRRC Transaction ID,
CN Domain ID [CS or PS],
NAS Message [ Encoded
Identity Request, Identity
Type (e.g. IMSI, TMSI, etc)]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Downlink Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAPDirect Transfer
[ NAS PDU (Identity Request!!) ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateIdentification Procedure:RRC Uplink Direct Transfer Message
Description: UE (MM) responds with Identity Response, encoded NAS PDU, in RRC Uplink Direct Transfer
message on DCCH (SRB-3).
Main IEsRRC Transaction ID,
CN Domain ID [CS or PS],
NAS Message [ Encoded
Identity Response, Requested
Identity Value ]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Downlink Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAPDirect Transfer
[ NAS PDU (Identity Request!!) ]
RRCRRCDCCH: Uplink Direct Transfer
[ CN Domain ID, NAS Message ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateIdentification Procedure:RANAP Direct Transfer Message
Description: RNC forwards received NAS PDU, to Core Network (MSC/VLR), using RANAP Direct Transfer
Message.
Main IEsNAS Message [ Encoded
Identity Response, Requested
Identity Value ]
Location Info [ e.g. LAI, RAC,
SAI, etc..] optional
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Downlink Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAPDirect Transfer
[ NAS PDU (Identity Request!!) ]
RRCRRCDCCH: Uplink Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAPDirect Transfer
[ NAS PDU (Identity Response!!) ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateAuthentication Procedure:RANAP Direct Transfer Message
Description: MM (optionally!!) initiates Authentication Procedure, with Identity Request message. MSC
forwards Authentication Request message, encoded NAS PDU, using RANAP Direct TransferMessage to RNC.
Main IEsNASPDU [ Encoded
Authentication Request,
CKSN, RAND, AUTN, .. ]
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RANAPRANAPDirect Transfer
[ NAS PDU (Authentication Request!!) ]
Identification Procedure
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateAuthentication Procedure:RRC Downlink Direct Transfer Message
Description: RNC RRC encodes received NAS PDU, in RANAP Direct Transfermessage, into RRC Downlink Direct
Transfermessage and send it to UE on DCCH (SRB-3).
Main IEsRRC Transaction ID,
CN Domain ID [CS or PS],
NAS Message [ Encoded
Authentication Request,
CKSN, RAND, AUTN, .. ]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Downlink Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAP
Direct Transfer[ NAS PDU (Authentication Request!!) ]
Identification Procedure
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateAuthentication Procedure:RRC Uplink Direct Transfer Message
Description: UE (MM) responds with Authentication Response, encoded NAS PDU, in RRC Uplink Direct Transfer
message on DCCH (SRB-3).
Main IEsRRC Transaction ID,
CN Domain ID [CS or PS],
NAS Message [ Encoded
Authentication Response,
SRES (UE Calculated!!) ]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Downlink Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAP
Direct Transfer[ NAS PDU (Authentication Request!!) ]
RRCRRCDCCH: Uplink Direct Transfer
[ CN Domain ID, NAS Message ]
Identification Procedure
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateAuthentication Procedure:RANAP Direct Transfer Message
Description: RNC forwards received NAS PDU, to Core Network (MSC/VLR), using RANAP Direct Transfer
Message.
Main IEsNAS Message [ Encoded
Authentication Response,
SRES (UE Calculated!!) ]
Location Info [ e.g. LAI, RAC,
SAI, etc..] optional
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Downlink Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAP
Direct Transfer[ NAS PDU (Authentication Request!!) ]
RRCRRCDCCH: Uplink Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAPDirect Transfer
[ NAS PDU (Authentication Response!!) ]
Identification Procedure
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateSecurity Procedure:RANAP Security Mode Command Message
Description: MSC (optionally!!) initiates Security Procedure, using RANAP Security Mode CommandMessage to
RNC.
Main IEsIntegrity Protection Info
[e.g. Permitted algorithms,
Integrity Protection Key, . ]
Encryption Info [e.g.
Permitted Algorithm Set,
Encryption Key, . ]
Key Status [Old or New]
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RANAPRANAP
Security Mode Command[ Integrity Protection, Encryption info ]
Identification / Authentication Procedure
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility ManagementLocation
UpdateSecurity Procedure:RRC Security Mode Command Message
Description: RNC RRC initiates security procedure, by sending RRC Security Mode Commandmessage to UE on
DCCH (SRB-2).
Main IEsCN Domain ID [CS or PS],
Integrity Check Info [ i.e.
MAC, RRC Msg Seq No ]
Integrity Prot Mode Info [
Cmd(S/M), Algo, FRESH, DL
Act time for SRBs ]
Ciphering Mode Info [ e.g.
Cmd(Start/Restart), Algo, DL
Act time for all RBs ]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Security Mode Command
[ CN Domain ID, Integrity Check Info, Integrity Protection/Ciphering Mode Info ]
RANAPRANAP
Security Mode Command[ Integrity Protection, Encryption info ]
Identification / Authentication Procedure
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateSecurity Procedure:RRC Security Mode Complete Message
Description: UE RRC send successful response of security procedure, by sending RRC Security Mode Complete
message to RNC on DCCH (SRB-2).
Main IEsRRC Transaction ID,
Integrity Check Info [ i.e.
MAC, RRC Msg Seq No ]
UL Integrity Protection
activation time for SRBs [ i.e.
RRC Msg Seq Numbers ]
UL Ciphering activation time
for all RBs [ i.e. RLC Seq
Numbers ]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Security Mode Command
[ CN Domain ID, Integrity Check Info, Integrity Protection/Ciphering Mode Info ]
RANAPRANAP
Security Mode Command[ Integrity Protection, Encryption info ]
Identification / Authentication Procedure
RRCRRCDCCH: Security Mode Complete
[ Integrity Check Info, UL Integrity Protection/Ciphering Activation Time ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateSecurity Procedure:RANAP Security Mode Complete Message
Description: RNC send successful response of Security Procedure, using RANAP Security Mode Complete
message towards MSC.
Main IEsChosen Integrity Protection
Algorithm [ i. e. UIA1 ]
Chosen Encryption
Algorithm [ No Encryption, or,
UEA1 ]
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Security Mode Command
[ CN Domain ID, Integrity Check Info, Integrity Protection/Ciphering Mode Info ]
RANAPRANAP
Security Mode Command[ Integrity Protection, Encryption info ]
Identification / Authentication Procedure
RRCRRCDCCH: Security Mode Complete
[ Integrity Check Info, UL Integrity Protection/Ciphering Activation Time ]
RANAPRANAPSecurity Mode Complete
[ Chosen Integrity, Encryption Algorithm ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateSecurity Procedure:RANAP Common ID Message
Description: MSC provide permanent NAS UE identity (i.e. IMSI) to RNC using RANAP Common IDmessage. RNC
use same for paging co-ordination functionality.
Main IEsPermanent NAS UE identity
( i.e. IMSI value )
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RRCRRCDCCH: Security Mode Command
[ CN Domain ID, Integrity Check Info, Integrity Protection/Ciphering Mode Info ]
RANAPRANAP
Security Mode Command[ Integrity Protection, Encryption info ]
Identification / Authentication Procedure
RRCRRCDCCH: Security Mode Complete
[ Integrity Check Info, UL Integrity Protection/Ciphering Activation Time ]
RANAPRANAPSecurity Mode Complete
[ Chosen Integrity, Encryption Algorithm ]
RANAPRANAP
Common ID[ Permanent NAS UE Identity ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateLocation Update Accept Procedure:RANAP Direct Transfer Message
Description: Core network MM confirms location update procedure by Location Update Acceptmessage to UE.
MSC transfers Location Update Accept, encoded NAS PDU, in RANAP Direct Transfermessage to RNC.
Main IEsNASPDU [ Encoded
Location Update Accept, LAI,
New mobile id(TMSI),]
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RANAPRANAP
Direct Transfer[ NAS PDU (Location Update Accept) ]
Identification / Authentication / Security Procedure
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateLocation Update Accept Procedure:RRC Downlink Direct Transfer Message
Description: RNC RRC encodes received NAS PDU, in RANAP Direct Transfermessage, into RRC Downlink Direct
Transfermessage and send it to UE on DCCH (SRB-3).
Main IEsRRC Transaction ID,
Integrity Check Info [ i.e.
MAC, RRC Msg Seq No ]
CN Domain ID [CS or PS] NASPDU [ Encoded
Location Update Accept, LAI,
New mobile id(TMSI),]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RANAPRANAP
Direct Transfer[ NAS PDU (Location Update Accept) ]
Identification / Authentication / Security Procedure
RRCRRCDCCH: Downlink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateLocation Update Accept Procedure:RRC Uplink Direct Transfer Message
Description: (Optionally!!) If TMSI has been reallocated as part of Location Update Accept Message, UE (MM)
responds with TMSI Reallocation Complete, encoded NAS PDU, in RRC Uplink Direct Transfermessage.
Main IEsRRC Transaction ID,
Integrity Check Info [ i.e.
MAC, RRC Msg Seq No ]
CN Domain ID [CS or PS] NASPDU [ EncodedTMSI
Reallocation Complete
Message Type ]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RANAPRANAP
Direct Transfer[ NAS PDU (Location Update Accept) ]
Identification / Authentication / Security Procedure
RRCRRCDCCH: Downlink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
RRCRRCDCCH: Uplink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateLocation Update Accept Procedure:RANAP Direct Transfer Message
Description: RNC forwards received NAS PDU, to Core Network (MSC/VLR), using RANAP Direct Transfer
Message.
Main IEsNASPDU [ EncodedTMSI
Reallocation Complete
Message Type ]
Location Info [ e.g. LAI, RAC,
SAI, etc..] optional
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
RANAPRANAP
Direct Transfer[ NAS PDU (Location Update Accept) ]
Identification / Authentication / Security Procedure
RRCRRCDCCH: Downlink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
RRCRRCDCCH: Uplink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
RANAPRANAPDirect Transfer
[ NAS PDU (TMSI Realloc Complete) ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateIu Connection Release:RANAP Iu Release Command Message
Description: On successful completion of Location Update procedure, CN initiate Iu (Signalling!!) Connection
Release procedure, using RANAP Iu Release Commandtowards RNC.
Main IEsCause ( Normal Release!! )
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
Identification / Authentication / Security Procedure
Location Update Accept (Optional TMSI Reallocation!!) Procedure
RANAPRANAPIu Release Command
[ Cause ]
Mobility Management Location
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76
Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateIu Connection Release:RANAP Iu Release Complete Message
Description: RNC confirms Iu signalling connection release, using RANAP Iu Release Completemessage to CN. It
also initiates lower layer (SCCP) connection release, established for respective Iu signalling Connection.
Main IEsChannels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
Identification / Authentication / Security Procedure
Location Update Accept (Optional TMSI Reallocation!!) Procedure
RANAPRANAPIu Release Command
[ Cause ]
RANAPRANAPIu Release Complete
SCCPSCCPReleased
[ SRC/DST References, Cause ]
SCCPSCCPRelease Complete[ SRC/DST References ]
triggers
Mobility Management Location
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77
Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateRRC Connection Release:RRC Connection Release Message
Description: RNC initiates RRC connection release, by sending RRC Connection Releasemessage to UE on DCCH
(SRB1).
Main IEsRRC transaction ID,
Integrity Check Info [ i.e.
MAC, RRC Msg Seq No ]
Release Cause[e.g. normal,
inactivity, directed re-
establishment, congestion, ..]
Rplmn information
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
Identification / Authentication / Security Procedure
Location Update Accept (Optional TMSI Reallocation!!) Procedure
Iu Connection Release
RRCRRCDCCH: RRC Connection Release
[ Integrity Check info, Release Cause ]
triggers
Mobility Management Location
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78
Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateRRC Connection Release:RRC Connection Release Complete Message
Description: UE responds with RRC Connection Release Complete message on DCCH to RNC, terminates RRC
connection and move to RRC IDLE state.
Main IEsRRC transaction ID,
Integrity Check Info [ i.e.
MAC, RRC Msg Seq No ]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
Identification / Authentication / Security Procedure
Location Update Accept (Optional TMSI Reallocation!!) Procedure
Iu Connection Release
RRCRRCDCCH: RRC Connection Release
[ Integrity Check info, Release Cause ]
triggers
RRCRRCDCCH: RRC Connection Release Complete
[ Integrity Check info ]
Mobility Management Location
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79
Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateUE Context Cleanup:NBAP Radio Link Deletion Request Message
Description: On reception of RRC Connection Release Completemessage, RNC initiates cleanup of UE context. If
RRC Connection in Cell DCH state, initiate Radio Link Deletion Requesttowards Node-B.
Main IEsTransaction ID,
CRNC Comm Ctxt ID,
Node-B Comm Ctxt ID,
RL ID(s)
Channels
SSCF : SSCOP : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
Identification / Authentication / Security Procedure
Location Update Accept (Optional TMSI Reallocation!!) Procedure
Iu Connection ReleaseRRC Connection Release
NBAPNBAPRadio Link Deletion Request
[ RL ID(s) ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateUE Context Cleanup:NBAP Radio Link Deletion Response Message
Description: On reception Radio Link Deletion Request, Node-B release all resources associated with respective
RL Ids. On success, respond with Radio Link Deletion Responsemessage to RNC.
Main IEsTransaction ID,
CRNC Communication
Context ID,
Channels
SSCF : SSCOP : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
Identification / Authentication / Security Procedure
Location Update Accept (Optional TMSI Reallocation!!) Procedure
Iu Connection ReleaseRRC Connection Release
NBAPNBAPRadio Link Deletion Request
[ RL ID(s) ]
NBAPNBAPRadio Link Deletion Response
[ CRNC Comm Ctxt ID ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateUE Context Cleanup:ALCAP Release Request/Confirm Message
Description: After RL deletion, RNC initiate AAL2 bearer release allocated for DCH data stream. RNC ALCAP
request release with Release Requestmessage, Node-B ALCAP confirms it with Release Confirmmessage.
Main IEsDSAID
Cause
DSAID
Channels
STC.2 / SSCF : SSCOP : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
Identification / Authentication / Security Procedure
Location Update Accept (Optional TMSI Reallocation!!) Procedure
Iu Connection ReleaseRRC Connection Release
NBAPNBAPRadio Link Deletion Request
[ RL ID(s) ]
NBAPNBAPRadio Link Deletion Response
[ CRNC Comm Ctxt ID ]
ALCAPALCAPALCAP Release Request
[ DSAID, Cause ]
ALCAPALCAPALCAP Release Confirm
[ DSAID ]
Mobility Management Location
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Channels Main IEs
RNC MSCNode-BUE
Mobility Management Location
UpdateLocation Update Complete!!..
Main IEsChannels
RRC Connection Establishment
Signalling Connection Establishment (Location Update Request Procedure)
Identification / Authentication / Security Procedure
Location Update Accept (Optional TMSI Reallocation!!) Procedure
Iu Connection ReleaseRRC Connection Release
UE Context Cleanup
Connection Management CS Call
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83
Connection Management CS Call
Setup and ReleaseRNC MSC/VLRNode-BUERRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification /Authentication / Security Procedure (Optional!!)
Call Setup Procedure
RRC Connection Release
UE Context Cleanup
Iu Connection Release
RAB Assignment Procedure ( Iu,IuB,UuSetups!! )
Call Connect Procedure
Iu Resource SetupIuB Resource Setup
Radio Bearer (Uu) Setup
Call Release Procedure
Call Connected : Voice Transfer!!
Connection ManagementCS Call
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84
Channels Main IEs
RNC MSCNode-BUE
o ect o a age e t S a
Setup and ReleaseSignalling Connection Establishment:RRC Initial Direct Transfer Message
Description: On successful establishment of RRC Connection, UE MM sends Service Request message, encoded
NAS message, enclosed in RRC Initial Direct Transfermessage on DCCH.
Main IEsRRC transaction ID,
CN Domain Identity [e.g. CS,
PS],
NAS Message [ Encoded
CM service request, Service
type, CKSN, Classmark, .. ]
Measurement Results
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
RRCRRCDCCH: Initial Direct Transfer
[ CN Domain ID, NAS Message ]
Connection ManagementCS Call
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85
Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseSignalling Connection Establishment:RANAP Initial UE Message
Description: RNC uses received CN domain identity in Initial Direct TransferMessage, and initiate Iu (Iu-CS)
connection setup, and transfer of received Initial UE NAS message using RANAP to core network (MSC/VLR).
Main IEsCN Domain ID [CS or PS]
Location Info [ e.g. LAI, RAC,
SAI, etc..]
NASPDU [ EncodedCM
service request, Service type,
CKSN, Classmark, .. ]
Global RNC ID
Iu Signalling Connection
Identifier
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
RRCRRCDCCH: Initial Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAPInitial UE Message
[ CN Domain ID, LAI, NAS-PDU ]
SCCPSCCPConnection Confirm (CC)
[ SRC/DST References ]
SCCPSCCP Connection Request (CR)[ Reference, SRC/DST Add, User Data ]Iu (Iu-CS!!) Connection Setup;
SCCP carry RANAP Initial UE Message
piggybacked in SCCP CR PDU!!
All subsequent RANAP messages will be
sent over this established SCCP Connection!!
Connection ManagementCS Call
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86
Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseSignalling Connection Establishment:RANAP Direct Transfer Message
Description: Core network MM confirms CM Service Request acceptance, using CM Service Acceptmessage to
UE. MSC transfers CM Service Accept, encoded NAS PDU, in RANAP Direct Transfermessage to RNC.
Main IEsNASPDU [ EncodedCM
service Accept, Only message
type!! ]
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
RRCRRCDCCH: Initial Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAPInitial UE Message
[ CN Domain ID, LAI, NAS-PDU ]
SCCPSCCPConnection Confirm (CC)
[ SRC/DST References ]
SCCPSCCP Connection Request (CR)[ Reference, SRC/DST Add, User Data ]Iu (Iu-CS!!) Connection Setup;
SCCP carry RANAP Initial UE Message
piggybacked in SCCP CR PDU!!
All subsequent RANAP messages will be
sent over this established SCCP Connection!!
RANAPRANAPDirect Transfer
[ NAS PDU (CM Service Accept) ]
Connection ManagementCS Call
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Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseSignalling Connection Establishment:RRC Downlink Direct Transfer Message
Description: RNC RRC encodes received NAS PDU, in RANAP Direct Transfer message, into RRC Downlink Direct
Transfer message and send it to UE on DCCH (SRB-3).
Main IEsRRC Transaction ID,
CN Domain ID (CS!!),
NASPDU [ EncodedCM
service Accept, Only message
type!! ]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
RRCRRCDCCH: Initial Direct Transfer
[ CN Domain ID, NAS Message ]
RANAPRANAPInitial UE Message
[ CN Domain ID, LAI, NAS-PDU ]
SCCPSCCPConnection Confirm (CC)
[ SRC/DST References ]
SCCPSCCP Connection Request (CR)[ Reference, SRC/DST Add, User Data ]Iu (Iu-CS!!) Connection Setup;
SCCP carry RANAP Initial UE Message
piggybacked in SCCP CR PDU!!
All subsequent RANAP messages will be
sent over this established SCCP Connection!!
RANAPRANAPDirect Transfer
[ NAS PDU (CM Service Accept) ]
RRCRRCDCCH: Downlink Direct Transfer
[ CN Domain ID, NAS Message ]
Connection ManagementCS Call
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Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseIdentification/Authentication/Security Procedure:UE RNC CN
Description: After successful establishment of signalling connection, optionally, CN NAS initiates identification,
authentication and security procedures.
Main IEsChannels
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Connection ManagementCS Call
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89
Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseCall Setup Procedure:RRC Uplink Direct Transfer Message
Description: After service accept and security procedure, UE (CC) UE initiates Call SetupMessage, encoded NAS
PDU, in RRC Uplink Direct Transfermessage on DCCH (SRB-3).
Main IEsRRC Transaction ID,
Integrity Check Info [ i.e.
MAC, RRC Msg Seq No ]
CN Domain ID (CS!!) NAS Msg [ EncodedCall
Setup, Calling/Called Party
No, Bearer Capabilities, .. ]
Channels
DCCH : DCH : DPDCH
RRCRRCDCCH: Uplink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Connection ManagementCS Call
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90
Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseCall Setup Procedure:RANAP Direct Transfer Message
Description: RNC transparently forwards received NAS PDU, to Core Network (MSC/VLR), using RANAP Direct
TransferMessage.
Main IEsNAS-PDU [EncodedCall
Setup, Calling/Called Party
No, Bearer Capabilities, .. ]
Channels
SCCP : MTP3b : SAAL : AAL5
RRCRRCDCCH: Uplink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
RANAPRANAP Direct Transfer[ NAS PDU (Call Setup) ]
Connection ManagementCS Call
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Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseCall Setup Procedure:RANAP Direct Transfer Message
Description: MSC Call Control functionality analyze received information in Call Setupmessage; responds back to
UE with Call Proceeding, encoded NAS PDU, using RANAP Direct TransferMessage towards RNC.
Main IEsNAS-PDU [EncodedCall
Proceeding, Chosen Bearer
Capabilities, Priority, ..]
Channels
SCCP : MTP3b : SAAL : AAL5
RRCRRCDCCH: Uplink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
RANAPRANAP Direct Transfer[ NAS PDU (Call Setup) ]
RANAPRANAPDirect Transfer
[ NAS PDU (Call Proceeding) ]
Connection ManagementCS Call
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Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseCall Setup Procedure:RRC Downlink Direct Transfer Message
Description: RNC RRC encodes received NAS PDU, in RANAP Direct Transfermessage, into RRC Downlink Direct
Transfermessage and send it to UE on DCCH (SRB-3).
Main IEsRRC Transaction ID,
Integrity Check Info [ i.e.
MAC, RRC Msg Seq No ]
CN Domain ID (CS!!) NAS-PDU [EncodedCall
Proceeding, Chosen Bearer
Capabilities, Priority, ..]
Channels
SCCP : MTP3b : SAAL : AAL5
RRCRRCDCCH: Uplink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
RANAPRANAP Direct Transfer[ NAS PDU (Call Setup) ]
RANAPRANAPDirect Transfer
[ NAS PDU (Call Proceeding) ]
RRCRRCDCCH: Downlink Direct Transfer
[ Integrity Check info, CN Domain ID, NAS Message ]
Connection ManagementCS Call
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93
Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseRAB Assignment Procedure:RANAP RAB Assignment Request Message
Description: After accepting call setup request, MSC initiates RAB setup, using RANAP RAB Assignment Request
message towards RNC.
Main IEsRAB Setup list, RAB ID
RAB Info [e.g. QoS Info,
Alloc/Ret Priority, ..]
SDU Params per Sub-flow
[BLER, BER, SDU Format info
combination(SDU Size)]
User Plane Info[mode,ver]
Transport Layer Info [ i.e.
TLA, Binding ID ]
Channels
SCCP : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Call Setup Procedure
RANAPRANAP RAB Assignment Request[ RAB ID, RAB Params, User Plane Info ]
Connection ManagementCS Call
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94
Channels Main IEs
RNC MSCNode-BUE
g
Setup and ReleaseRAB Assignment Procedure:ALCAP Establish Request/Confirm Message
Description: RNC initiates AAL2 bearer establishment towards MSC, using received AAL2 TLA & Binding ID. MSC
ALCAP verifies received Binding ID; and respond successful establishment with ALCAP ECF Message.
Main IEsOSAID, DSAID + CEID,
SUGR (Binding ID!!),
AAL2 Destination Address
OSAID,
DSAID
Channels
STC.1 : MTP3b : SAAL : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Call Setup Procedure
RANAPRANAP RAB Assignment Request[ RAB ID, RAB Params, User Plane Info ]
ALCAPALCAPALCAP Establish Confirm
[ OSAID,DSAID ]
ALCAPALCAPALCAP Establish Request
[ OSAID,DSAID,SUGR,AAL2 Address ]
triggers
Connection ManagementCS Call
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95
Channels Main IEs
RNC MSCNode-BUE
Setup and ReleaseRAB Assignment Procedure:IuUP INIT and INIT ACK Frame
Description: After successful AAL2 bearer creation, RNC IuUP initiates initialization procedure with peer IuUP in
MSC, to negotiate IuUP version and supported RFCIs (i.e. SDU Sizes, Inter-Frame Time, etc) for this Call.
Main IEsIuUP Version
Number of Sub-flows in
evey RFCI
RFCIs, SDU Sizes
Channels
FP: AAL2
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Call Setup Procedure
RANAPRANAP RAB Assignment Request[ RAB ID, RAB Params, User Plane Info ]
ALCAPALCAPALCAP Establish Confirm
[ OSAID,DSAID ]
ALCAPALCAPALCAP Establish Request
[ OSAID,DSAID,SUGR,AAL2 Address ]
IuUPIuUPINITIALIZATION ACK
IuUPIuUPINITIALIZATION
[ IuUP Version, RFCIs, SDU Sizes ]
triggers
Connection ManagementCS Call
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Channels Main IEs
RNC MSCNode-BUE
Setup and ReleaseRAB Assignment Procedure:NBAP RL Reconfiguration Prepare Message
Description: After (or along with!!) Iu resource allocation, RNC reserves additional radio resources, according to
RAB requirement and initiates resource allocation over IuB, using NBAP RL Reconfiguration PrepareMessage.
Main IEsNodeB Comm Ctxt ID,
UL/DL DPCH info [ e.g.
Codes, TFCS, etc ]
DCH info [ e.g. TrCH ID,
UL/DL TFS, Window(ToAWS,
ToAWE), Priority, etc..]
RL Info, [e.g. RL ID, DL Code,
Power Information, Max/Min
DL power, etc ]
Channels
SSCF : SSCOP : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Call Setup Procedure
RAB Assignment Procedure (Iu Setup)NBAPNBAP
RL Reconfiguration Prepare[ UL/DL DPCH info, RL info, DCH ]
Connection ManagementCS Call
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97
Channels Main IEs
RNC MSCNode-BUE
Setup and ReleaseRAB Assignment Procedure:NBAP RL Reconfiguration Ready Message
Description: Node B reserves necessary resources for new configuration of Radio Link(s), Coordinated DCH for
Voice, etc according to received parameters; and send success response to RNC.
Main IEsTransaction ID,
CRNC Comm Ctxt ID,
RL IDs
DCH Info Response [ e.g.
TrCH ID, Transport Layer
Address and Binding ID ]
Channels
SSCF : SSCOP : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Call Setup Procedure
RAB Assignment Procedure ( IuSetup )NBAPNBAP
RL Reconfiguration Prepare[ UL/DL DPCH info, RL info, DCH ]
NBAPNBAPRL Reconfiguration Ready
[ TLA, Binding ID ]
Connection ManagementCS Call
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98
Channels Main IEs
RNC MSCNode-BUE
Setup and ReleaseRAB Assignment Procedure:ALCAP Establish Request/Confirm Message
Description: RNC initiates AAL2 bearer establishment for voice DCH, using received AAL2 TLA & Binding ID.
Node-B ALCAP verifies received Binding ID; and respond successful establishment with ALCAP Confirm Msg.
Main IEsOSAID, DSAID + CEID,
SUGR (Binding ID!!),
AAL2 Destination Address
OSAID,
DSAID
Channels
STC.2 : SSCF : SSCOP : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Call Setup Procedure
RAB Assignment Procedure ( IuSetup )NBAPNBAP
RL Reconfiguration Prepare[ UL/DL DPCH info, RL info, DCH ]
NBAPNBAPRL Reconfiguration Ready
[ TLA, Binding ID ]
ALCAPALCAPALCAP Establish Request
[ OSAID, DSAID, SUGR, AAL2 Address ]
ALCAPALCAPALCAP Establish Confirm
[ OSAID, DSAID ]
Connection ManagementCS Call
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99
Channels Main IEs
RNC MSCNode-BUE
Setup and ReleaseRAB Assignment Procedure:FP DL/UL Synchronization Frames
Description: New DCH voice FP initiates L2 synchronization using DL synchronizationframe with current CFN.
Node-B FP(peer!!) verifies CFN to SFN relationship; & respond back with ToA(required timing adjustment) info
Main IEsCFN (Connection Frame
Number)
CFN (Connection Frame
Number),
ToA (Time of Arrival)
Channels
STC.2 : SSCF : SSCOP : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Call Setup Procedure
RAB Assignment Procedure ( IuSetup )NBAPNBAP
RL Reconfiguration Prepare[ UL/DL DPCH info, RL info, DCH ]
NBAPNBAPRL Reconfiguration Ready
[ TLA, Binding ID ]
ALCAPALCAPALCAP Establish Request
[ OSAID, DSAID, SUGR, AAL2 Address ]
ALCAPALCAPALCAP Establish Confirm
[ OSAID, DSAID ]
FPFPDL Synchronization
[ CFN ]
FPFP UL Synchronization[ CFN, ToA ]
Connection ManagementCS Call
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Channels Main IEs
RNC MSCNode-BUE
Setup and ReleaseRAB Assignment Procedure:NBAP RL Reconfiguration Commit Message
Description: After successful Iu, IuB Resource setup (and User Plane, L1/L2 at RNC!!), RNC calculates CFN,
activation time, for this synchronized procedure; and provide same to Node-B (and UE along with RB Setup!!).
Main IEsTransaction ID,
Node-B Communication
Context ID,
CFN (Connection Frame
NumberActivation time for
new configuration!!)
Channels
STC.2 : SSCF : SSCOP : AAL5
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Call Setup Procedure
RAB Assignment Procedure ( IuSetup )NBAPNBAP
RL Reconfiguration Prepare[ UL/DL DPCH info, RL info, DCH ]
NBAPNBAPRL Reconfiguration Ready
[ TLA, Binding ID ]
ALCAPALCAPALCAP Establish Request
[ OSAID, DSAID, SUGR, AAL2 Address ]
ALCAPALCAPALCAP Establish Confirm
[ OSAID, DSAID ]
FPFPDL Synchronization
[ CFN ]
FPFP UL Synchronization[ CFN, ToA ]
NBAPNBAPRL Reconfiguration Commit
[ Activation CFN ]
Connection ManagementCS Call
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101
Channels Main IEs
RNC MSCNode-BUE
Setup and ReleaseRAB Assignment Procedure:RRC Radio Bearer Setup Message
Description: On successful Iu, IuB resource (and User Plane, L1/L2 at RNC!!), RNC initiates Radio Bearer Setup
towards UE on DCCH, for requested voice RAB, with selected configuration and allocated resource information.
Main IEsActivation time (CFN!!)
RB info [ RAB ID, CN ID, RLC
Config, RB mapping ..]
RRC State (Cell DCH!!)
TrCH info [ UL/DL TFCS, DCH
IDs, TFS, etc.. ]
Radio info[e.g. Frequency,
Codes, Power info, etc.. ]
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Service Request Procedure)
Identification / Authentication / Security Procedure
Call Setup Procedure
RAB Assignment Procedure ( Iu,IuBSetup!! )
RRCRRCDCCH: Radio Bearer Setup
[ Integrity Check Info, Activation CFN, RB Setup info, TrCH info, RL info ]
Connection ManagementCS Call
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5/21/2018 Umts Call Flow Scenarios overview
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102
Channels Main IEs
RNC MSCNode-BUE
Setup and ReleaseRAB Assignment Procedure:RRC Radio Bearer Setup Complete Message
Description: UE RRC validates, received RB setup configuration, stores it and activates the same at specified
activation CFN. After activation of new configuration, it sends Radio Bearer Setup Completemessage to RNC.
Main IEsRRC Transaction ID,
Integrity Check Info [ i.e.
MAC, RRC Msg Seq no ]
START Value (CS!!)
Ciphering Count-C
Activation Time (CFN!!)
Channels
DCCH : DCH : DPDCH
RRC Connection Establishment
Signalling Connection Establishment (Ser